Merrimack Valley September 14, 2018 7:30 am Chaos Ensues After Merrimack Valley Gas Explosions Chaos ensued after a series of gas explosions set 60 to 80 homes ablaze in Massachusetts’ Merrimack Valley. US & World Videos 3:43 23-year-old detained at Northeastern's graduation 1:56 20-year-old killed, teen critically hurt in Northbridge double stabbing 1:02 Bruins fans hyped after Game 7 OT win over Maple Leafs 0:33 Paperwork filed to charge student accused of school shooting threats in Milton 1:50 Man found shot to death in Taunton shed